Trigonometry — Examples (AQA GCSE Maths): Flashcards

$\sin \theta = \frac{\text{Opposite}}{\text{Hypotenuse}}$

$\cos \theta = \frac{\text{Adjacent}}{\text{Hypotenuse}}$

$\tan \theta = \frac{\text{Opposite}}{\text{Adjacent}}$

Inverse functions: $\sin^{-1}$, $\cos^{-1}$, $\tan^{-1}$

Split it into right triangles first

Remain the same

Label the sides relative to the angle

Cosine (CAH)

Tangent (TOA)

Sine (SOH)